- Name: Yamaide Aiko (山出愛子)
- Birthdate: December 1, 2002
- Birthplace: Kagoshima Prefecture, Japan
- Blood Type: O
- Height: 151.1 cm
- Shoe size: 23cm
- Special Skill: Piano, Magic Tricks, Calligraphy
- Hobby: Watching movies, Listening to music
- Favorite Food: Nishime (cooked food)
- Favorite School Subject: English
- Something I can't live without: My pillow
- What do you want the most now: Dokodemo Door
- One thing you always have in your bag: Earphone, Charger, Lip gloss
- What do you want to do during your day off tomorrow: Go for a spa tour
- Biggest failure so far: Forgot to bring shoes for dance lesson.
- Favorite dish in lunch box: Asparagus Meat Roll, Meat Wrapping Rice Ball
- One Thing you wish can come true: I want a stomach that does not change body size no matter how many ice I eat everyday.
- What do you want the most now: Height!
- One Thing that is non-negotiable: TKG (Tamago Kake Gohan) made with only yolk
- [2019.07.17] Natsu no Koi no Owari (夏の恋の終わり; The End of Summer Love)
- [2018.08.22] Smile (スマイル)
- [2018.12.01] Choice
- Former member of idol girl group Sakura Gakuin (May 2013-Mar 2018).